Fastening of door handles and the like



March 25 1924. 7 c. RiDDICK FASTENING OF DOOR HANDLES AND THE LIKE.F'iled Sqnt. 21. 1.922

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Patented ll lar, 25, lgfi ll.

STATES CHARLES BIDDICK, 0F EPSOI/I, ENGLAND.

FASTENING- OF DOOR HANDLES AND 'LKKE.

Application filed September $1, 1922.

To all whom it may concern:

Be it known that 1, CHARLES Bremen, a British subject, and resident of 9Grand Parade, Epsom, in the county of Surrey, England, ha-ve inventedcertain new and useful Improvements in the Fastening of Door Handles andthe like, for which I have filed applications in England dated 15thNovember, 1921, and 8d August, 1922, of which the following is aspecification.

' This invention relates to the fastening of door handles and likeknobs. The most usual method 0;- fastening door handles consists inemploying a small set screw or grub screw passed through the neck of thedoor handle to grip or pinch the square spindle. This method is oftenunsatisfactory, however, because it is difiicult and inconvenient toscrew in the small screw and when it has been in use for some time itusually becomes rusted and it is almost impossible to remove. Othermeans for securing door handles in position have been proposed and aresometimes seen in use, but as a general rule they .are somewhatcomplicated and do not com pare with the more usual form in the point ofcheapness. It is the object of the pres ent invention to enable doorhandles to be fastened upon their spindles in manner which issatisfactory in practice and yet is simple and therefore cheap.

According to the present invention the door handle or other knob to befixed to the spindle is made with its front portion readily detachablefrom the other portion, which is first slipped on to the spindlepreferably until it beds against an adjusting nut; then a securing nutis screwed on to the screw-threaded endof the spindle and finally thefront portion of the handle is detachably fastened in place in order toenclose the securing nut. in a particularly efi'ective form of thisfastening the adjusting nut is engaged by the door handle when thelatter beds against the said nut, for can ample, by a rib and grooveconnection in such a manner that their the adjusting nut is preventedfrom rotating relatively to the handle. As the latter is on a s uarespindle, the result is that when the two are in engagement the adjustingnut is prevented from rotation.

In order that the invention may be clearly understood and readilycarried into effect it will now be more fully described with Serial No.585M349.

reference to the accompanying drawings in which Figure 1 is a verticalsection through the door handle fastening and a portion of a door;

Figure 2 is a side elevation of the door handles and spindle removedfrom the door;

ll igure 3 an elevation partly in section of a modified form of two partdoor handle;

Figure l is a face view of the adjusting nut, and

Figure 5 is a view 01" the right-hand door handle looking from the leftin Figures 1 and 2.

Referring particularly to Figures 1 and 2, one door handle a ispermanently fixed to the square spindle Z); a rose 0 is slipped on tothe spindle b and the latter is pushed through the door (Z into positionwith the right hand end of the spindle projecting on the other side ofthe door; the other rose 6 is placed. upon the spindle b and theadjusting nut f is screwed down on the spindle 0 until the rose 6 issufliciently tight. Then the rear half 9 of the second door handle isplaced on to the square spindle b and is bedded against the adjacentnut.

f, as shown in Figures 1 and 2-. The face of the nut f is formed with adiametral groove as shown at h in Figure 4 somewhat like a radialkeyway. The engaging face of the rear part 9 of the door handle isformed with two radial projecting ribs is, Z, most clearly seen inFigure 5 and these serve as a key to engage the groove h. i lhen theribs is, Z, are in the groove as illustrated in Figures 1 and 2, theadjusting nut 7' cannot be turned relatively to the handle 9 and as thelatter has a square aperture seen in Figure 5 and is on a squared partof the spindle 5, both the nut f and the handle 9 are locked fromrotation. When the part 9 of the handle is bedded against the adjustingnut f a thick washer m substantially conical in shape is placed withinthe handle over the spindle b to fit in the conical recess in the handleg. The securing nut a is then screwed on to the spindle b and bedsagainst the washer m holding the part 9 or the handle firmly against theadjusting nut f and locking the whole in position. The front part p ofthe handle is then secured to the rear part 9 as shown in Figures 1 and2. The part g is formed with an inturned lip g and a projectingcylindrical portion 7' on which'a screw-thread is out while the part phas an inturned portion 8 also screw-threaded to screw on to the part7*.

In the modified form shown in Figure 3 the front part p of the handle ismade of a plainer shape and is simply held by being sprung on to thepart 1' of the rear part of the handle 9, which in this case is notscrewthreaded but plain and of a suitable size to hold the part p inposition.

In order to readjust the nut f the securing nut 12 has to be slackedback and the part 9 of the handle withdrawn from engagement with the nutf and then the nut can be rotated. This construction provides anadjustment to within a quarter of one turn of the nut f, becausealthough there are not two grooves 72 at right angles the portion 9 ofthe handle can of course be placed on the squared spindle in one of twopositions mutually at right angles.

It will be seen that the invention provides a method of fastening doorhandles or other knobs, for example, the knobs of brass bedsteads, whichis simple and cheap and yet is reliable and satisfactory in use; it hasthe further advantage that it allows for any thickness of door and canbe used with a mortise lock, with an ordinary projecting lock, or in adoor without a lock at all.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is 1. In a knob attachment, the combination ofa screw-threaded spindle square at one end, an adjusting nut screwedthereon, a hollow two-part door handle comprising a hollow rear portionsubstantially of funnel shape and formed with a square aperture to fitthe square end of said spindle and a front portion detachably securedto'said rear portion, a washer on said spindle located within said doorhandle and shaped'to fit within the funnel shaped portion thereof and toreinforce internallysaid rear portion and a securing nut screwed on saidspindle within said door handle against said washer to maintain saidrear portion of said door handle in contact with said adjusting nut.

2. In a knob attachment, the combination of a screw-threaded spindle, anadjusting nut screwed thereon, a hollow two-part knob comprising a rearportion shaped to slide non-revolubly on said spindle and a frontportion detachably secured to said rear portion to form a closuretherefor, a securing nut screwed on said spindle to maintain said rearportion of said knob in contact with said adjusting nut and a clutchdevice for clutching said adjusting nut to a portion of said knob inorder to prevent rotation of said adjusting nut.

3. In a knob attachment, the combination.

of a screw-threaded spindle square at one end, an adjusting nut thereonfo med with a single diametral groove on the face towards the squaredend of said spindle, a hollow two-part door handle comprising hollowrear portion with a square aperture to lit the squared end of saidspindle and a front portion detachably secured to said rear portion, asingle projecting rib on the rear face of said rear portion shaped toengage the groove in said adjusting nut when said rear portion is incontact with said adjusting nut to prevent rotation thereof and asecuring nut screwed on said spindle within said door handle to maintainthe rear portion of said door handle in engagement with said adjustingnut.

CHARLES RIDDICK.

